A high pressure ridge, which brings sinking and warming air, will be building over the West Coast through the week. It will peak on Saturday. Each day, temperatures will be close to 100 degrees.

Highs in the 100s are not unheard of this time of year, but it is unseasonably warm. Average highs are in the lower 80s with records near 100°F.

The average first 100°F temperature for Sacramento Executive Airport, the official climate data station, is June 11. The earliest occurrence of hitting 100°F happened in 1987 on May 7. In 1998, temperatures didn’t hit 100°F until July 15. That was the latest first 100°F reading on record.

The heat is notable this early in the season, but it's not unheard of for Sacramento to hit 100°F in May.

The average last day in the 100s is September 7. Sometimes 100°F-plus heat ends much earlier though. In 1985, temperatures didn't hit 100°F after July 24, leading to a nice, cool end to summer. On the flip side, triple-digit heat can last into fall. The latest 100°F reading for Sacramento Executive happened in 1991 on October 10.

This stretch of warm weather this week may be a sign of what is to come this summer. The National Oceanic and Atmospheric Administration’s Climate Prediction Center is forecasting an above average temperature outlook for June, July and August across much of the West Coast.

Warmer temperatures are leading to snowmelt and some spectacular waterfall spots in California. Many falls were barely a trickle last year in the fourth year of drought. This year with a healthy snowpack, the snowmelt has led to a robust flow of water. In other words, the roar of water is back! Timing is everything with waterfalls across northern

Climate change is projected to corrode California’s snowpack, forcing water officials to rethink how they store and distribute water in a state that’s prone to prolonged droughts. Efforts have begun to improve the management of water stored in the state’s underground aquifers, which could help compensate for its loss of snowpack storage. Despite

A parade of El Niño-fueled storms has marched over California in the last few weeks, bringing bouts of much needed rain and snow to the parched state. But maps of drought conditions there have barely budged, with nearly two-thirds of the state still in the worst two categories of drought. So what gives? The short answer, experts say, is that the

As Yogi Berra famously said, “it’s déjà vu all over again.” While much of the eastern U.S. digs out from yet another snow and ice storm, the West has capped off a decidedly toasty winter. In fact, California, Utah, Arizona, Nevada, and Washington each saw their hottest winter on record, according to data released Friday by the National Climatic